Using proportions, it is found that the missing value and the probability are given as follows:
A. The missing value is of 0.45.
B. 26 of the shoppers are men who prefer mineral water.
What is a proportion?
A proportion is a fraction of a total amount.
Item a:
We can use two equations to find the missing value:
0.13 + x = 0.58 -> x = 0.45.
0.14 + x = 0.59 -> x = 0.45.
Hence the missing value is of 0.45.
Item b:
0.13 out of the 200 shoppers are men who prefer mineral water, hence, applying the proportion:
0.13 x 200 = 26.
More can be learned about proportions at https://brainly.com/question/24372153